One vertex per element, one color per generator, with an edge from x to x·s.
(1,2,7,9)(3,10,4,8)(5,11,12,6)(13,16,15,14)(33,34,38,40)(35,39,44,43)(36,41,47,46)(37,42,48,45)(1,3,7,4)(2,8,9,10)(5,15,12,13)(6,14,11,16)(17,18)(19,23)(20,24)(21,22)(25,31)(26,29)(27,32)(28,30)(33,35)(34,39)(36,45)(37,41)(38,44)(40,43)(42,47)(46,48)(2,9)(6,11)(8,10)(14,16)(18,22)(23,29)(24,30)(31,32)(34,40)(35,44)(41,46)(42,45) involution — undirected(1,4,7,3)(2,10,9,8)(5,13,12,15)(6,16,11,14)(17,19,21,26)(18,23,22,29)(20,27,28,25)(24,32,30,31)(33,36)(34,41)(35,45)(37,39)(38,47)(40,46)(42,44)(43,48)(1,5,7,12)(2,11,9,6)(3,13,4,15)(8,14,10,16)(17,20,21,28)(18,24,22,30)(19,25,26,27)(23,31,29,32)(33,37,38,48)(34,42,40,45)(35,46,44,41)(36,43,47,39)(1,6,7,11)(2,12,9,5)(3,14,4,16)(8,13,10,15)(17,18)(19,23)(20,24)(21,22)(25,31)(26,29)(27,32)(28,30)(33,35)(34,43)(36,45)(37,46)(38,44)(39,40)(41,48)(42,47)A Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.